Tailings cone



Sept. 18 1923. 1,468,374

H. K. BURCH TAILINGS CONE Filed July 27, 1922 F'Lql. a

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\ a gil l 9 b {4 /6 lo INVENTOR. 5 Henry KenyonBumch BY MM/f /w JQ A TTORNE Y.

Patented Sept. 19 23.

ts!) .srarss HENRY KENYON Burton, on

LQS ANGELES, CALIFORNIA.

resumes CONE.

Application filed July 27,

To all whom-it may concern} Be it known that I, HENRY KnNYoN BURCH, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Tailings Cone, of which the following is a specification.

This invention relates to a device for receiving mill tailings and for separating the sand or solids from the water therein, the solids being delivered in such manner as to build up a retaining dam and the water being delivered separately, for example to the pond retained by such dam. The main obthereto Fig- 1 is a'plan view of the device.

Fig. 2 is a vertical section thereof.

Fig. 3 is a partial side elevation of the tailings receiving cone.

In the drawing, the tailings receiving cone, indicated at 1, is shown as provided with suspension means 2 whereby it may be supported in position to discharge'the sand at a suitable point,it being understood that the position of the cone will be shifted from time to time so as to build up the sand at desired locations. Suitable launder means, not shown, are provided for supplying to the cone 1 the tailings to be separated or de watered, and said cone is provided, near its .upper end, with an overflow outlet 3 for water, and at its lower end with an outlet 4: for solids or sand. A suitable launder, not shown, is generally provided for conducting the water from overflow 3 to a more or less distant point.

Gone 1 is mounted on the suspension means 2 by means of weighing levers which operate to control a valve 5 for outletd'responsively to the weight ofmaterial in the cone, two of suchweighing levers being indicated at 7, mounted by pivots trunnions or knife edges 8 on a cross bar 9 carried by 7' thesuspension means 2. The outer end of each lever 7 is connected by a link 10 to the upper rim of cone 1, and the inner end or each lever is connected to or engages with, a nut 12 and a valve stem 13 which slides through a hole 16 in bar 9. A spring 14 is interposed between bar 9 and a nut 15 on 1922. Serial No. 578,001.

valve stem 13, so that the pressure of said spring tends to force the valve stem downwardly to close the valve, while the weight of the cone and its contents operates to lift the Valve stem, relatively to the cone, and open the valve. The arms of weighing levers 7 which engage the nut 12 on the valve stem are preferably made longer than the arms which sustain the cone carrying links 10, so as to give a diiierential eiiect, increasing the travel of the valve for a given displacement of the cone under its load.

In the operation of the device, the tailings are-supplied to the cone 1 by suitable launder means, and the sand or solids settle to a of nuts 12 and 15, screwing on valve stem 13, the weight of the cone and its contents acts through links 10 and levers 7 to raise the valve Stem 13 and open the valve 1, so as to permit solid material, in the form of sand or sludge, to flow from the cone through outlet 4.

The above described construction, in which spring means are used to control the weighing action, is advantageous as compared with a weight controlled construction, in that the device may be made much lighter; and moreover, the outlet valve may be given a more rapid and extensive movement in opening, by reason of the difierential action of the weighing levers above referred to, without unduly increasing the weight of the apparatus, as would be the case were weights used for control of the levers.

What I claim is:

1. A device for separating water from solids in tailings, comprising a cone having an overflow near its upper end and a sand outlet at its lower end, a valve for said outlet, provided with a stem, suspension means for said cone, weighing levers mounted on. said suspension means and engaging said valve stem, said cone being suspended from said levers so as to cause opening of the valve by the operation of the weight of the cone and its contents on said levers, and spring means operating on said levers so as to tend to close said valve.

2. A device for the purpose described, comprising a downwardly converging cone outlet at its bottom, a suspension means pro.

vided With a cross bar, a valve stein inouut 1i nks SUSPGllCllllgj stem to tend to raisethe valve stem. and open 10 the valve, and a spring extending between the cross bar and the other of said nuts on the valve stem sous to tendto hold the valve? closed. o I V In testimony whereof I have hereunto sub-- scribed my name this 15th day of July, 1922.

HEN RY KENYON BURCH. 

